Shackle-hook.



PATENTED JULY 26, 19-04.

W. ROBSON.

SHACKLE HOOK.

APPLICATION TIL-ED DEC. 7, 1903.

N0 MODEL.

UNTTE n STATES Patented July 26, 1904.

WILLIAM ROBSON, OF KELSO, SCOTLAND.

SHACKLE-HOOK.

SFEGIFICATION forming part of Letters Patent No. 766,065, dated July 26,1904. Application filed December 7, 1903. Serial No. 184,201. (Nomodel.)

To all 71-71mm. it may concern:

Be it known that I. WILLIAMRonson, a subject of the King of GreatBritain, residing at Grove Hill, Kelso, in the county of Roxburgh,Scotland, have invented new and useful Improvements in Shackle-Hooks, ofwhich the following is a specification.

My invention relates to improvements in shackle-hooks in which thesuspending-hook is made in two parts pivoted together, the two partswhen brought together forming a hook to which any weight can besuspended or attachment made, while when the two parts of the hook areseparated the weight can be removed; and the object of my invention isto provide for the ready locking together and unlocking the two parts ofthe hook in their closed and opened positions.- I attain this 0bject bythe mechanism illustrated in the accompanying drawings, in which Figure1 is a front view of the shackle-hook open and unlocked. Fig. 2 is asimilar view showing the hook closed and locked. Fig. 3 is a side viewof Fig. 1'. Fig. 4. is a front view of a hook, showing both halves ofthe hook pivoted to open and close. Fig. 5 shows the arrangementillustrated in Figs. 1 and 2, but with a hook for its suspension. showsthe invention applied to a catch-hook for a watch-chain.

Similar letters refer to similar parts throughout the several views.

a, Figs. 1 and 2, is a center or case consisting of two parallel disks(0 a connected by a strong central pin 6. The suspendinghook hung fromthese disks consists of two hooks 0 c, the parts of which fit side byside, so as to form a single closed hook when brought together, as shownin Fig. 2, while one of them, 0, can be opened out to a sufficient angleto allow any weight hung upon it to be removed, as shown in Fig. 1.

(Z (Z are strong pivots passing through and fixed at the lower edge ofthe disks (0 (4 the hook 0 being suspended upon the pivot (Z and thehook 0 being suspended upon the pivot (Z'.

Upon the center pin 6, between the two disks a a is pivoted a plate orsegment of a disk 6, provided with an arm f, projecting sufficiently upabove the disks and having an Fig. 6'

eye g, by which the entire device can be attached to or suspended from achain or other support.

The short upper ends or arms of the hooks c 0 above the pivots (Z (Z andbetween the disks are bent out and curved at it it, so that their outeredges when the hooks are closed together are concentric and level withthe edge of the disks a a while their inner edges are concentric withand fit against the circular part of the pivoted plate or segment ofadisk e. and in this position, as shown in Fig. 2, it is impossible forthe two parts 0 0 of the hook to separate or become open. The pivotedplate ehas, however, part of its circumference cut out, as shown at e,in such way and to such an extent that when itis turned sufficientlyround on the pin 6, as shown in Fig. 1, the upper end 7t of the hook 0can fall into the notch, and the hook is opened, as shown. The otherhalf, 0, of the double hook is shown rigidly fixed between the disks (0a, to which its upper arm it is riveted or bolted, as shown at 0 Bothhalves of the double hook may be pivoted, so that normally they are keptfirmly closed together, as shown in Fig. 4, while either half can beallowed to open when desired by turning the pivoted plate 6 to the rightor left upon the pin Z), the plate being cut away for the purpose, asshown.

In order to turn the plate sufiiciently round on the pin 6 to releaseone of the hooks, I form at the upper end of the barf an eye or hook g,by which the apparatus can be attached to a hook, rope, or othersupport. By relieving the hooks 0 0 of the weight hanging to them andturning down the bar or arm f the part 0 of the hook is turned upon itscenter and opened, as shown in Fig. 1. As, however, it is generallyrequired to open the double hook without turning down the entireapparatus, as in Fig. 1, the modification of Fig. 1 shown in Fig. 5 maybe used, in which the apparatus is suspended or attached by aswivel-hook 7: upon a strap Z, fitting across the upper edge of theplates 0 a and pivoted on the center 6, the plate (2 being pivoted (asbefore) upon Z) between the plates a a and having a projecting eye orhandle m, by which it can be readily turned round sufficiently whenrequired. An ordinary spring-catch may be used to retain the plate ineither of its positions.

The apparatus may be applied to the purposes for which such opening andclosing hooks are ordinarily used, and it may be made of any size andstrength. Fig. 6 shows it in very small size for attaching a watch to achain, for instance, the construction being the same as shown in Figs. 1and 2.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

1. A shackle-hook, comprising a body portion, a pair of grapplingmembers mounted thereon, and a locking-lever independent of thesupporting-chain pivoted to said body portion and adapted to lock saidgrappling members, substantially as described.

2. A shackle-hook, comprising a body portion, a pair of grappling-hooksmounted thereon, and a locking-lever independent of the supporting-chainpivoted to said body portion and adapted to lock said grapplinghooks ina closed position.

3. A shackle-hook, comprising a body portion, apair of grappling-hooksmounted thereon, and a locking-lever independent of the supporting-chainpivoted to said body portion and provided with a cut-away portionadapted to unlock said grappling hooks when moved from one position toanother.

4. In a shackle-hook, the combination of side plates, a pair ofgrappling-hooks depending from said side plates, and a locking-leverprovided with a cut-away portion, pivoted between said side plates andadapted to lock said grappling-hooks in a closed osition.

5. In a shackle-hook the combination of side plates, a locking-leverprovided with a cut-away portion, pivoted centrally between said sideplates, a stationary hook secured be tween the lower part of said sideplates, a swinging hook pivotally mounted opposite said stationary hook,provided with a lug adapted to engage with said cut-away portion in saidlocking-lever when in the open position.

6. A shackle-hook comprising side plates, a plurality of overlappinggrappling members depending therefrom, and means movably connected tosaid plates, constructed to lock said members in overlapped positionwhen placed substantially in the line of pull, and to release saidmembers from'such position when placed,

substantially at right angles to the line of pull.

7 A shackle-hook comprising-side plates, a pair of overlappinggrappling-hooks depend ing therefrom, and a lever pivoted between saidplates, constructed to lock said members in overlapped position whenplaced substantially in the line of pull, and to release said membersfrom such position when placed substantially at right angles to the lineof pull.

8. A shackle-hook comprising side plates, a plurality of overlappinggrappling-hooks depending therefrom, and a lever pivoted between saidplates and provided with an enlarged portion adapted to lock said hooksin overlapped position when placed substantially in the line of pull,and also provided with a cut-away portion into which one of said booksmay be lifted to release said hooks from such position when said leveris placed substantially at right angles to the line of pull.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

VVILL IAM ROBSON.

Witnesses:

ALFRED T. BRATTON, H. D. J AMESON.

